摘要:
A compound represented by the formula (I) is used as an active ingredient in a medicament for treatment or prevention of infectious diseases caused by protozoa or bacterium. X represents halogen, Z represents —(CH2)m— wherein m is an integer of 1-5, and R represents one of the following (i)-(v): (i) hydrogen n represents an integer of 0-5, R1's independently represent hydrogen, halogen, alkoxy having 1-5 carbon atoms or alkyl having 1-5 carbon atoms. R2's independently represent hydrogen, halogen, alkoxy having 1-5 carbon atoms or alkyl having 1-5 carbon atoms. (iv) alkyl having 1-5 carbon atoms, (v) hydroxyalkyl having 1-5 carbon atoms.
摘要翻译:在由用于治疗或预防由原生动物或细菌引起的感染性疾病的药物中使用由式(I)表示的化合物作为活性成分。 X表示卤素,Z表示 - (CH 2)m - ,其中m为1-5的整数,R表示以下(i) - (v)中的一个:(i)氢n表示0-5的整数, R 1独立地表示氢,卤素,具有1-5个碳原子的烷氧基或具有1-5个碳原子的烷基。 R 2独立地表示氢,卤素,具有1-5个碳原子的烷氧基或具有1-5个碳原子的烷基。 (iv)具有1-5个碳原子的烷基,(v)具有1-5个碳原子的羟烷基。
摘要:
A novel 1-fluoro-1,1-bis(arylsulfonyl)methane is provided which is useful in monofluoromethylation. Also provided is a production method thereof.A method for producing a fluorobis(arylsulfonyl)methane, the method including the steps of: treating a bis(arylsulfonyl)methane represented by the following formula (1), (ArSO2)2CH2 (1) (wherein Ar represents a substituted or unsubstituted phenyl group or naphthyl group) with a base; and then adding a fluorination reagent thereto, to produce fluorobis(arylsulfonyl)methane represented by the following formula (2) (ArSO2)2CHF (2) (wherein Ar is defined as above), and a fluorobis(arylsulfonyl)methane (2) represented by the above formula (2), which is a novel compound that is very useful in producing a monofluoromethyl.
摘要:
The coating apparatus and method enable the coating liquid having been scraped-off to be reused without doing any one of the fluid adjusting treatment and the filtering treatment, while maintaining the features of the scraping-off type of extrusion coater, which is suitable for obtaining a uniform and extremely thin coating film. The coating head is provided with two slits: a coating slit and a recovering slit, and the excessive coating liquid having been discharged through the coating slit and applied to the web is scraped-off and recovered through the recovering slit.
摘要:
It is possible to give ultrathin and uniform coating on a flexible web in scraping-off type coating. The distribution of pressure in a web width direction is adjusted by a pressure distribution adjusting device when an excess of coating liquid excessively applied is scraped off by a doctor blade by giving relative pressure to a coating surface of a web and the doctor blade after applying the coating liquid that is more excessive than the desired quantity of the coating liquid on the web by a precoating apparatus while making the web continuously travel.
摘要:
An extrusion coating head comprises an upstream side block (12) and a downstream side block (13) aligned in the conveying direction, and adjusting mechanism. The upstream and downstream side blocks (12, 13) respectively have edge surfaces (12a, 13a) on which the flexible support (1) is pressed. The upstream and downstream side blocks (12, 13) define therebetween a slit (15b) through which a coating composition can be extruded and applied onto the flexible support. The adjusting mechanism adjusts a length (t) of a perpendicular line which is drawn from an upstream end (A) of the edge surface of the downstream side block to a tangential line (L) of the edge surface of the downstream side block which is drawn from a downstream end of the edge surface of the upstream side block, to thereby adjust a distribution of a coating thickness on the flexible support in the width direction.
摘要:
Coating equipment 20 with an extrusion type coating head comprising a back edge 6 having a top side which slopes away from a support from the height of the top of a front edge 5, a coating fluid spouting slot 4 defined by both the edges, and guide plates for regulating the width of a coating fluid spouted from the slot tip on both side ends of the slot for applying the coating fluid to the support surface from the slot 4 in a non-pressurized condition. The nearest point to the support surface in the slot corresponding portion of the upper edge of the guide plate 7 is positioned slightly upstream from the center line of the width of the slot along the support running direction and the area given by the product of the distance between the nearest point and the support surface and the width of the slot is made a specific value or less. The coating equipment thus formed has no risk of damaging the support and effectively lessens the effect of air entering from both end sides of an application point of a coating fluid during a high speed thin coat application and produces no film cut when the coating fluid is applied to the running support surface by non-pressurization type coating equipment.
摘要:
A method for producing a magnetic recording medium which results in the effective oblique orientation of magnetic fine particles without aggregation of the particles. The method results in a magnetic recording medium having an upper magnetic layer containing needle-shaped, granular, or plate-like magnetic particles, and at least one lower nonmagnetic layer formed on a nonmagnetic support so that the magnetic particles have the maximum degree of orientation in an oblique or perpendicular direction with respect to a surface of the support. The oblique or perpendicular orientation is performed in the wet state of a magnetic layer and in the condition in which the amount of the solvent residue in the upper magnetic layer is 40 to 80% after the upper magnetic layer and the lower nonmagnetic layer are applied sequentially or simultaneously to form a multilayer. The upper magnetic layer is formed so as to be thinner than the lower nonmagnetic layer and subjected to horizontal orientation with a plane of the surface of the support.
摘要:
A coating apparatus for forming one or more coating layers on a substrate by means of an extrusion-type head comprising a front edge located on an upstream side with respect to a moving direction of the substrate and a back edge which is located on a downstream side in the moving direction of the substrate. The back edge has a corner portion partially defining an extrusion slot and which is displaced further from the substrate than the front edge in a state in which a precoating solution comprised mainly of an organic solvent is applied in advance on a coating surface of the substrate. A chamfered surface is formed on the corner portion. According to the invention, an angle .alpha. formed by the chamfered surface and a downstream inclined surface of the back edge is such that 40.degree..ltoreq..alpha..ltoreq.140.degree., an angle .beta. formed by chamfered surface and an upstream inclined surface of the back edge is such that 40.degree..ltoreq..beta.
摘要:
A coating method and a coating apparatus are constructed for simultaneously coating a plurality of different organic-solvent-based coating liquids each composed of a non-newtonian fluid having fine particles dispersed therein to form a multi-layered structure having three or more layers on a strip of continuously travelling non-magnetic supporting substrate with the aid of an extrusion type coating head. The coating liquids are instantaneously injected through the corresponding slits. The coating liquid for the lowermost layer is a non-magnetic liquid. The coated layers are successively formed one above another with the aid of a doctor edge plane located on the downstream side of each slit. The coating head is constructed such that each doctor edge plane does not pass a tangential line extending from the upstream end of an opening portion of each slit to a doctor edge of a slit located on the downstream side and that a coating liquid injected through a slit on the upstream side merges with a coating liquid injected through a slit on the downstream side while defining a predetermined merging angle therebetween.
摘要:
An apparatus for automatically cleaning surfaces of an application apparatus is disclosed. The invention is characterized in that it includes a basement extending in parallel with the longitudinal direction of an application apparatus used to apply a magnetic dispersion liquid to a flexible carrier, a tracer movable on the basement, a traverser which can be moved from the tracer to a position over the edge surfaces of the application apparatus and be moved vertically relative to the surfaces, and a cleaning head coupled to the traverser at the end portion thereof so that the head can be placed in elastic contact with the edge surfaces.